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Thread: Benchbox SS by Johann

  1. #1
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    Benchbox SS by Johann

    This unit was initially used for experimenting, the experiments and testing went great so I finished it off in a basic benching setup, 1 metre flexline with on/off switch.

    I have to say I have had some very pleasant benching sessions with this one sofar, the suctionline reaches everywhere and its very cold. Strangely enough the 14cc Electrolux compressor is rather silent and really powerfull

    Specs:

    Compressor: Electrolux MP14FB R404a/R507a
    Evap: Chilly1 rev e Captube: 2.6m 0.031
    Suction flex: 1 metre 3/8 braided
    Gas R402a (Mostly )
    Controller: none

    Temps:

    idle: -70c
    150w resistor load: -48c
    185w resistor load: -44c

    On my coldbugged opty 146 at 2.65Ghz 1.68v it pulls -55c and at 3Ghz 1.75v it pulls -53.5c loaded temps.

    This unit laughs at high loads, not that the above loads are high but the drop from the voltage and Mhz increase is almost nothing and it pulls the 185w tester to great temps.

    Im posting this unit in the for sale section later if anyone is interrested.

    Pics:

    Benching




    Idle temp:


    Load 2650Mhz 1.68v


    Load 2950Mhz 1.75v


    Open side:
    Last edited by johann; 09-18-2006 at 08:48 AM.

  2. #2
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    nice temps there, and rly clean unit.

  3. #3
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    Nice unit you got going there. Really like how it doesn't change much with loading.
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  4. #4
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    those probes ok then johan??
    great unit and really nice temps.

  5. #5
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    How many units have you built now? 50?
    ...is no longer working as an assistant HVAC/R-installer...
    But, is still blasting 20000 songs of real Rap

  6. #6
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    Quote Originally Posted by Big SturL
    How many units have you built now? 50?
    lol no not that many

  7. #7
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    nice work!

  8. #8
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    very nice unit you have there

  9. #9
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    Don't we all wish we sold 50 units + not that many on my end... but it is ramping up slowly.
    Very awesome ss Want to share a bit of detail? I had one i was running for testing which was... COLD... (not idle but load) but... scared hack out of me with it's pressure.
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  10. #10
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    Very long suction line, nice build! I'm sure you jinu will have no problem selling SS units, you are one of the best.
    Heatware: 50-0-0
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  11. #11
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    That looks sick! How much would something like that sell for?

  12. #12
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    I'm still waiting to build my first ss
    might do it over the summer

  13. #13
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    Awsome temps and a clean setup, U make some pro Units dude.

  14. #14
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    another piece of art off the johann assembly line ....good stuff mate

  15. #15
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    wow i really like it with the green button. so much better than the red.

    looks great man and great temps there.
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  16. #16
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    Once again some really impressive work Johann

    The temps are great, and the delta on load is excellent. I've got a real liking for Electrolux compressors, they've worked really well every time I've used them

    Cheers

    Gray
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  17. #17
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    Very nice and kind words indeed from everyone, thanks

    As for elaborating, anyone wants any info can pop me a pm

  18. #18
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    Impressive Johann.

    That 402a 507 mix - is that better than a 402a mixed with 293?

    I am seeing some really nice temps with this gas - you certainly look to have mastered the mixing.

    If we compare the electrolux compressor to the danfoss NL11F in the Mach units - what are the differences (quieter? more capacity etc?)

    I am not a phase builder just like to know more about it from the guys who know.


    Any pics on the inside?

    Mav

  19. #19
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    That is nice what size compressor is that?

  20. #20
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    Just like my unit, this one screams quality workmanship. Elcellent job there Johann, gonna have to talk to one of these days about gas mixtures in anticipation of the Conore


    BTW nice mobo
    Last edited by Johnny Bravo; 05-31-2006 at 07:33 AM.

  21. #21
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    Very nice Johann

  22. #22
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    what static pressure have you on this unit?
    what temperature this compressor have after 3-4 hours running ?

    btw good job

    regards and sorry for my english
    Duniek

  23. #23
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    Mav, I think you got the gasses a bit mixed up, there is no R507 in this unit also there is no gas called 293 afaik.

    For most systems R402a pure is great, thats what I use in 95% of units. This one has a small percentage high pressure gas to boost the boiling point and make use of the extra capacity of the 14cc compressor.

    As for the compressor, It has more capacity (not alot) than a NL11f and it runs a little louder than nl11f but for 1/2hp 404/507 compressor its great.

    Duniek, static pressure is quite high, the unit is packed away now but as I can remember its around 20-30 psi higher than my normal units.

    Compressor temp under 150w load, around 65-70c Under very high load (185w) a few c more.

  24. #24
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    i got the spec sheet if you want it for that compressor.
    its a medium temp compressor

  25. #25
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    What length suction flex line?


    If you have a cooling question or concern feel free to contact me.

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